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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 26 — Sep. 10, 2011
  • pp: 5178–5184

Projection-aided videometric method for shape measurement of large-scale bulk material stockpile

Xiaohu Zhang, Jianliang Ou, Yun Yuan, Yang Shang, and Qifeng Yu  »View Author Affiliations


Applied Optics, Vol. 50, Issue 26, pp. 5178-5184 (2011)
http://dx.doi.org/10.1364/AO.50.005178


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Abstract

Large-scale stockpiles are a common means for the storage of bulk material and their shape mea surement is a prerequisite for effective transportation and logistics management. This paper proposes a projection-aided videometric method that is based on stereo vision and makes use of projections and epipolar geometry constraints to solve the correspondence problem. A prototype measuring system was developed that can work in real time and achieve measuring accuracy of 0.71 mm in terms of the flatness deviation and 0.54 mm in terms of the depth error, as proven by the experimental results.

© 2011 Optical Society of America

OCIS Codes
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: April 18, 2011
Revised Manuscript: June 23, 2011
Manuscript Accepted: July 8, 2011
Published: September 9, 2011

Citation
Xiaohu Zhang, Jianliang Ou, Yun Yuan, Yang Shang, and Qifeng Yu, "Projection-aided videometric method for shape measurement of large-scale bulk material stockpile," Appl. Opt. 50, 5178-5184 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-26-5178

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